Selective preconcentration of thorium in the presence Of UO22+, Ce3+ and La3+ using Th(IV)-imprinted polymer

Buyuktiryaki S., Say R., Ersoz A., Birlik E., Denizli A.

TALANTA, vol.67, no.3, pp.640-645, 2005 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 67 Issue: 3
  • Publication Date: 2005
  • Doi Number: 10.1016/j.talanta.2005.03.016
  • Journal Name: TALANTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.640-645
  • Keywords: thorium preconcentration, ion imprinting, MIP, IIP-SPE, packed-bed column, SOLID-PHASE EXTRACTION, SEPARATION, URANIUM, RECOGNITION, REMOVAL, RESIN, LANTHANUM(III), BEHAVIOR, MATRIX, BEADS
  • Anadolu University Affiliated: Yes

Abstract

We have prepared Th(IV) ion-imprinted polymers, which can be used for the selective preconcentration of Th(W) ions, represented by uranium and lanthanides. N-methaeryloyl-(L)-glutamic acid (MAGA) was chosen as the complexing monomer. In the first step, Th(IV) was complexed with MAGA and the Th(IV)-imprinted poly[ethylene glycol dimethacrylate-N-methacryloyl-(L)-glutamic acid] (Poly(MAGAEDMA)) beads were synthesized by suspension polymerization. After that, the template Th(IV) ions were removed using 8.0 M HNO3 solution. The breakthrough capacity was 40.44 mg Th(IV)/g beads. The relative selectivity coefficients of imprinted beads were 68, 97 and 116 for UO22+, La3+ and Ce3+, times greater than non-imprinted matrix, respectively. The Th(IV) -imprinted beads could be used many times without decreasing their breakthrough capacities significantly. (c) 2005 Elsevier B.V. All rights reserved.